Lock-nut.



GEORGE I-I. COOK, F BELLEVILLE, NEW JERSEY.

LOOK-NUT.

Specification of Letters Patent.

Application led October 3, 1916. Serial No. 123,461.

To all whom t may concer/n."

Be it known that I, GEORGE II. CooK, a citizen oi' the United States, residing at Belleville, in the county ot Essex and State of New Jersey, have invented certain new and useful Improvements in Lock-Nuts, of which the following is a specification. My invention `relates vto a lock nut adapted to be operated upon any correspondingly threaded bolt, and has for an object to provide means for positively holding the nut from being unscrewed shocker use, the said means being movably mounted `within the body of the nut and being adapted to automatically engage with al ratchet Jraced washer to hold the nut in an operative position, also means whereby it may be readily released to an inoperative position for adjustment or removal, the said washer being provided with means to hold it in a xed position.

vIn the accompanyingl drawings, forming part oi' this specification, and in which like letters of reference designate corresponding parts inthe several views :v

Figure 1 is a side view of the lock nut, Fig. 2 is a bottom view of the pawl and spring detached, Fig. 3 is a tace view of the ratcheted washer, Fig. 4 is an edgewise view of same disclosing bottom projections which serve to hold the washer from turning, Fig. 5 is an alternative form of pawl and spring, with rotative cam to engage or release it.' Fig. 6 is a longitudinal sectional view taken through the nut lock assembled, the section being taken through the mortisein the nut. My improved lock nut @comprises a bolt b correspondingly threaded, anda ratchet facedwasher c there on having projections al upon the 'face opposite the ratchet to hold it in a fixed position. i

' rlhe nut a has a inortise recess e in the body thereof adapted to receive the spring y' and pawl 7c, the mortise has a shallow eX- tension at oneend to admit ot the` use or drift f to press under pawl lato release pawl romratchet so that nut a may be unscrewed, an alternative Jform of pawl and spring may be used if preferred in which the pawl g is more curved .to aiiord use of cam h, z', which may be rotated to put the pawl g into op- Copies of this patent may be obtained for lock nut with,

eration, or reversely to release the same from ratchet.

Having thus described lmy invention, what I claim is:

1. In a nut lock, the combination with a bolt, of a nut threaded on the bolt, a locking washer engaging over the bolt beneath the nut and having ratchet teeth in one tace and anchoring projections in its opposite tace, said nut having a niortiselin one end and near one side facing the teeth of the washer, an elongated pawl having a washer engaging end, andan elongated spring bearing against` the inner side of the pawl and diverging from the washer engaging end of the pawl, said spring and pawl being adapted to be loosely seated in the inortise with the spring innermostrand adapted to urge the wash engagingend of the pawl into contact with said teeth of the washer. j

2. Ina nut lock, the combination with a bolt, of a nut threaded on the bolt, a locking washer engaging over the bolt beneath theV nut and having ratchet teeth in one face opposite the nut and anchoring projections on its other tace, said nut having a mortise in one end near one side, the inortise being relatively shallow at one end and openingl tliereat through the side of the nut, an elongated pawl having a washer engaging end, and an elongated spring bearing against the inner side of the pawl and diverging from the washer engaging end oit' the pawl, said pawl and spring being adaptedto be seated in the mortise with the washer engaging end of the pawl remote from the shallow end of the recess and with the spring normally urging the washer engaging end of the pawl through the recess into Contact with the ratchet teeth of said washer, the shallow end of the recess being adapted to receive an instrument therethrough Jfor contact with the outer side of the pawl to retract the latter from the washer. i

In testimony whereoi1 I aHiX my name in the presence of two subscribing witnesses.

GEO. H. COOK. Witnesses:

IILLiAM C. Coon, JOI-IN T. WRIGHT.

ve cents each. by addressing the Commissioner of Patente. Washington, D. C.

Patented Dec. ill, imi?. 

